I'm changing my rear sway bar from 24mm to 19mm, I have Energy Suspension Poly bushings. Are the clamps that hold the bushings all the same? Will a 19mm bushing fit into a 24mm clamp?

 

Stock, stock, stock, yeah. If you're using aftermarket bushings with their own shells, all bets are off. Aside from being more glossy and funny colors, most stock replacement bushings are harder rubber or poly at this point. If the ES bushings dont fit the stock shells, replacements from the local store should and will probably be just as stiff and durable.

 

my intention is to use rubber bushings and not poly bushings in the rear for better weight transfer and I’m not sure if they’ll fit the ES shells. I’m also finding it difficult finding 19mm rubber bushings.

 

??????

They won't. Be as sure as you like of that. They are COMPLETELY different.

What are you REALLY trying to accomplish here? What kind of car, what are you doing with it, what is it doing that isn't adequate, what do you want it to do instead, etc. Start at THE BEGINNING, not somewhere in the middle. Like, don't come on here asking how to kill the alligators, when what you REALLY want is to drain the swamp, and the only reason you REALLY want to do that is to build a bridge over it. Chances are, if you start at THE BEGINNING (build a bridge) you might not even have to do the intermediate step (drain the swamp) which might make the step YOU THINK you have to take (kill the alligators) totally irrelevant.

 

You tried the fitment of a ES shell and an OEM rubber bushings?

Before the next time I come on here I’ll make sure I bone up on my Engrish composition, and figure out how the alligators drain swamps and build bridges 🤔

 

I've had both of them in my hand at the same time. They don't interchange.

The point I'm trying to make is, tell us what you're trying to do, starting more or less from the beginning. Don't start in the middle and leave out all the stuff that leads up to whatever weird thing it is that you think you want. Like the alligator thing: it may be quite possible to do the thing you REALLY want to do (like, build a bridge) without any of those intermediate steps (like, draining the swamp), and the thing you think you're struggling with and need help (like, putting stock bushings into ES shells, or killing the alligators) might turn out to be totally unnecessary and just a diversion and waste of time.

In this case, it's beyond bizarre to talk about using rubber sway bar bushings rather than poly for "weight transfer". Whatever it is you're trying to do, putting stock rubber bushings into aftermarket shells made for a different size part, isn't likely to accomplish anything related to "weight transfer". That just makes no sense at all. Which is why I asked what you're REALLY trying to accomplish... maybe there's a better way than whatever it is you've convinced yourself you need to do. Maybe if you go back to the beginning and explain more fully, we can help, instead of just being confused.

19mm is SO CLOSE to ¾" that it's almost impossible to tell the difference. Less than .002" or .05mm difference. The sockets in a socket set interchange, for all practical purposes.

 

Lol, always love reading your excellent responses sofa! Buried in them are a gold mine of information! Keep draining the swamp!

 

Called ES, the shells are interchangeable.

 

I'm using polyurethane bushings with stock brackets. Everything fits...

 

The ones I had, wouldn't have.

Maybe there are / were / have been different ones.

 

unfortunately any mass produced item at some point has had some sort of tweaking to the design.

 

I emailed and talked to ES and I’m getting conflicting info. In the email I was told that 9.5123 was just the bushing and on the phone was told that the 9.5156 was the part for a universal 19mm bushing. Contacted Moog was told that the part number was K201829, I’m not having any luck finding any of that are just the bushing.

 

Sorry I got a little lost here... Are you looking for rubber bushings or brackets to hold everything.

Going back to the start, if you are seeking weight transfer then I'm not sure if the bushing material matters and if the bushing comes with a bracket then great one less used rusty part you need to clean up. If you lube the bushings and sway bar with the correct grease there shouldn't be anything to "bind up" the movement of the rear suspension.

What are you building? A drag car?

 

I’m reworking some of my 91 Firebirds suspension with the idea to start going to local autocross and road course events. Yeah maybe weight transfer wasn’t the right term, suspension bind probably be more correct.
My original question was answered by ES, the shells for the bushings are the same, a she’ll for a 24mm will work with a 19mm, from a mass production stand point that makes more sense than each size having its own shell and that’s what I assumed just needed confirmation.
I ended up buying a brand new kit of ES 19mm bushings, some of the reading I was doing some people setting up cars for autocross were using rubber bushings instead of poly and I was debating on trying these out but I couldn’t find any 19mm rubber bushings, even contacted Moog apparently they don’t offer them.

 

The rear sway-bar has nothing whatsoever to do wih weight transfer...